Do hamster cages by different brands have interchangeable parts?
The Habitrail and S.A.M. cage parts all seem to fit together well, but I don’t know about other brands. I used to have an off-brand cage many years ago, which did not fit with the S.A.M. tunnels, except with some sort of adaptor pieces. I’m glad to be rid of that, because it was a pain. Since the most common cage parts I see in stores are made by S.A.M. and Habitrail, I think these two choices will suffice.